Jmill
Venture investor in Pittsburgh
Pittsburgh, Pennsylvania
Jmill, Venture investor in Pittsburgh is an active investor based in Pittsburgh, Pennsylvania. This profile covers what Jmill backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCInvestor
- Stages
- Seed
- Invests in
- Hardware & Deep TechArtificial IntelligenceSpace & AerospaceManufacturing & Industrial
- Location
- Pittsburgh, Pennsylvania
- Typical check
- $250K
- Past investments
- 6
Notable investments
StartEngineRise Companies Corp.How to reach Jmill
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Cite this page
Round Funded. "Jmill." Round Funded investor database, updated September 28, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/jmill-jonathan-b-miller
Frequently Asked Questions
What does Jmill invest in?
Jmill invests in Hardware & Deep Tech, Artificial Intelligence, Space & Aerospace and Manufacturing & Industrial, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Jmill invest at?
Jmill typically invests at Seed. Lead with traction that fits the stage when you reach out.
What is Jmill's typical check size?
Jmill typically writes checks around $250K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.